Charles p



(N9 Model.)

0. I. ROTH.

SHOE NAIL.

No. 586,936. Patented July 20; 1897.

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. UNITED STATES PATENT OFFICE.

CHARLES F. ROTH, OF IRONTON, OHIO, ASSIGNOR OF T\VO-FIFTHS TO FREDRICK WILLIAM HAS ENAUER, OF SAME PLACE.

SHOE-NAIL.

SPECIFICATION forming part of Letters Patent No. 586,936, dated July 20, 1897. Application filed May 25, 1826. Serial No, 592,957. (No model.)

T0 at whom it may concern.-

Be it known that I, OHARLESF. ROTH, a citizen of the United States, residing at Ironton, in the county of Lawrence and State of Ohio, have invented certain new and useful Improvements in Shoe-Nails; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Myinvention relates to shoe nails or' brads, but more particularly to brads of the character referred to especially designed for use as a means for securing together the several thicknesses of leather forming the heel of a shoe.

The objects of the invention are to provide simple, inexpensive, and efficient means for securing together several layers of leather in such manner as to prevent separation thereof under ordinary conditions and to enable the last layer to be firmly bound to the others in the series and held in proper position with out being pierced by the brads by which it is secured, so that it may present a smooth imperforate exterior surface.

The invention will first be described with reference to the accompanying drawings, which form a part of this specification, and then pointed out in the claim at the end of the description.

Referring to the drawings, in which similar letters of reference are used to denote similar parts of the device, Figure 1 represents a sectional elevation of an inverted shoe-heel having its parts secured together by means of brads constructed in accordance with my invention. Fig. 2 is a similar view showing the last layer of leather in position to be pressed upon the heads of the brads by which it may be secured as a part of the heel. Fig. 3 is a side elevation, and Fig. 4 a perspective view, of a preferred form of brad embodying my invention.

In the drawings, A may represent the heel of a shoe, andB a cut brad,which consists, essentially, of a slender body portion 17 of a length sufficient to pass through'the usual number of layers or thicknesses of leather forming the heel of a shoe, and which may have two or more of its sides gently inclined, so as to form a gradual taper from the head thereof to its point to facilitate its insertion, and which is formed with a head-and-neck portion in the form of a dovetail, the sides thereof being inclined so as to cause the neck to taper sharply from the head or top of the brad to the junction of said neck with said body portion, thus forming a shoulder at the base of the neck and an angular niche or recess on two or more sides, the walls of said neck being inclined upwardly and outwardly from the base of the neck to the head or top of the brad and thereby giving angular shape to the niche or recess.

The brad thus constructed is adapted to be driven into the heel of a shoe through the several thicknesses of leather forming the same and to be firmly secured by clenching at its lower end or point, as shown in Figs. 1 and 2, with its head-and-neck portion 1) pro- 3' ectin g above the last layer but one, as shown in Fig. 2, and thereupon the last layer a of theheel is forced against the dovetails b, so as to cause the latter to partially pierce the leather, and by suitable pressure the fibrous material pierced by the brad-heads will recede and close up or fill in the niches formed by the dovetails, so as to firmly hold said layer in contact with the remaining layers and prevent it from working loose, and obviously the natural pressure of the foot in use will only tend to further compress the material between the dovetails and render the fastening more permanent and secure.

The brad being clenched at its point can not return or work out of place, and the last strip or layer of leather being firmly held, as

described, by the angular form of the heads ber 20, 1892, for a cut-nail machine, being adapted for their economical manufacture out of nail-plate or sheet-iron, and by the use of such machines these brads may be manufactured in large quantities at a very small cost, much below the cost of ordinary wire nails. The brads of the described construction are also particularly adapted for use with machines of the class known to the trade as the McKay I-Ieeling-Machine.

I am aware that shoe-nails with spearshaped heads and heads in the shape of a cross for attaching an outer layer of leather to the heel of a shoe are not new, and that wire nails have been formed with variously-shaped heads for similar purposes, the latter, however, being expensive to make as compared with cut nails, and hence I do not broadly claim any of such constructions.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent ofthe United States, is-

As a new article of manufacture, a cut shoe-nail for securing several thicknesses of leather together and binding thereto an outer imperforate layer only partially pierced by the head of the nail, so as to leave its outer surface imperforate; said nail being formed with a slender body portion which tapers gradually from its head to its point, and with a head-and-neck portion having a flat top and tapering sharply from its top to its junction with said body portion, so as to provide ashoulder at the base of said neck and triangular recesses between said shoulder and top; both the body portion and the head-and-ncck portion of the nail being free from projections and having smooth surfaces from top to point; whereby the nail is adapted to be machine-driven and may easily pierce several thicknesses of leather and bind thereto an outer imperforate layer by the receding of the fibrous material partially pierced by the head so as to close the aforesaid triangular recesses, substantially as described.

In testimony whereof I afiix my signature in presence of two witnesses.

CHARLES F. ROTH.

Witnesses:

T. J. HAYES, CHARLES D. RICHARDS. 

